Abstract: NMR spectra of the compounds (C6H,), &H3-, and (G, Hs) $ H2, Na(n= I, 2; X= N, P, or As) in tetrahydrofuran solution have been recorded and assigned. The results are consistent with the existence of a plr-plr interaction between substituent and phenyl ring in all cases when the substituent is nitrogen but only in the anions when the substituent is phosphorus or arsenic. Equilibria involving ion pairing are throught to be significant in ...
